Plastic fastener with slider and bag body with plastic fastener

Abstract

The present invention relates to a plastic zipper equipped with a slider, and a bag body equipped with the above plastic zipper, and the object of the invention is to provide a plastic zipper equipped with a slider which zipper is required to have a strong opening force despite its miniaturization. The object is achieved in a hermetically sealing plastic zipper equipped with a slider (S) for opening and closing the zipper, comprising a pair of male hook and female hook (F1-1, F1-2, M1-1, M1-2), by installing flanges on the opening portion sides for each of the male and female hooks, connecting the respective ends of the flanges, and pressing a wedged opening plate into the inside of a closed plastic cylinder which is constituted of the flange portions connected respective ends thereof and extended to the zipper in an engaged state so that the zipper is firstly opened and after the zipper is opened, the top portion of the flanges in a connected state is disconnected. The above plastic zipper equipped with the slider has an extremely high opening strength despite its miniaturization and thereby is capable of easily open a zipper in which hooks or opening end edges are bonded with easily peelable plastic layers for the purpose of preventing unjust unsealing and which has a strong opening strength.

Dependencies are inferred from the claim text.